A structure whose secretions cause the uterine endometrial tissue to thicken in preparation for
pregnancy is indicated by the label
a. 1.
b. 2.
c. 3.
d. 5.
e. 7.
D
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Bryophytes are small and simple. Some produce a flattened photosynthetic structure called a:
A. phallus. B. thallus. C. prometheus. D. sporangium. E. primordia.
Digger wasps orient using
A. pheromones. B. sight. C. magnetic fields. D. smell. E. sound waves.
Which of the following is the primary function of saprobic protists?
a. returning inorganic nutrients to the soil and water b. using carbon fixation to generate nutrition for organisms c. providing a protective environment for zooxanthellae d. facilitating reproduction by recombining genes
The chromosome theory of inheritance states that
A) genes are located on chromosomes. B) chromosomes replicate before cell division. C) alleles of a gene segregate during cell division. D) chromosomes consist of DNA. E) different chromosomes assort independently of one another.